Fitness: How soon can you resume physical activity after knee-replacement surgery?

Often referred to as the “wear and tear” arthritis, osteoarthritis occurs when the body no longer repairs joint tissue damaged from aging, injury, obesity or genetics. Most common in the knee, there is no cure. Instead, pain and restrictions to physical activity steadily increase and quality of life decreases as the joint continues to degrade. Total joint-replacement surgery is a popular option for osteoarthritis sufferers who want to restore knee function and resume their active lif